Lecture-9 126. Word Ladder 2 | GFG | leetcode | Graph Traversal | Graph Series | DSA | Hindi

Problem Name:
127. Word Ladder
Problem Statement:
A transformation sequence from word beginWord to word endWord using a dictionary wordList is a sequence of words beginWord - s1 - s2 - ... - sk such that:
Every adjacent pair of words differs by a single letter.
Every si for 1 = i = k is in wordList. Note that beginWord does not need to be in wordList.
sk == endWord
Given two words, beginWord and endWord, and a dictionary wordList, return all the shortest transformation sequences from beginWord to endWord, or an empty list if no such sequence exists. Each sequence should be returned as a list of the words [beginWord, s1, s2, ..., sk].
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